The Fitball Seat Cushions are the same great wedge shaped design as the Move'N Sit but in a smaller more versatile 13" size. Provides dynamic seating, allowing movement while also improving posture. Smooth on one side, bumpy on the other. Try one for in the classroom ad at home during meal times or when doing homework. Wiggle seats let you move while still sitting. This wedge has no carry handle. *Sorry- This item does not qualify for any shipping discounts.